Here is a link to a game called TRIPLETS... There is a link also to the main page of this THINKING GAME WEBSITE, but this game is unique.
MOST GAMES you try to complete a direct goal - as in get here to there, move this to that, get the most pieces on a grid, etc.. But in TRIPLETS, your goal is interesting different, you need to FORCE your opponent to SET YOU UP to get 3 playing pieces in a row, vertical, diagonal or horizonal.
You each have the same colored pieces and place them one at a time on a grid, alternating turns. QUICKLY you start finding out that the number of places you have to put your pieces run out, setting your opponent (the computer) up to win.
Any three pieces in a straight line win, so you need to make sure you are NOT placing two in row (either next to each other or with a space between them) for the computer to complete by filling in the THIRD space.
It is a VERY addictive game, sort of the opposite of many other games. I once saw a similar game played on BIG BROTHER the reality show, they were using people not playing pieces, but it was the same game.
Give this a try if you are into thinking games - it's a winner!http://www.mazeworks.com/triplets/index.htm